Cybersecurity researchers don't know where the virus came from.
All they know is that it's very simple and very effective.

Dan Goodin of ArsTechnia reportsthat the malware, dubbed "Batchwiper,"
systematically wipes certain drive partitions (i.e. sections of a
hard drive) as well asany files stored on the Windows
desktop of the user who is logged in when it's
executed.

"Despite its simplicity in design, the malware is efficient and
can wipe disk partitions and user profile directories without
being recognized by antivirus,"
CERT stated. "However, it is not considered to be widely
distributed."

But Kaspersky agrees
with CERT that unlike Stuxnet or Flame, Batchwiper is "an
extremely simplistic attack" with "no
connection to any of the previous wiper-like attacks we've
seen" on government systems or in the wild.